Rotating spherical nozzle ø150 aluminum NOK150AL

Rotating spherical cap fi150 aluminium

Made from the highest quality aluminum sheet, this cap acts as an active element enhancing draft in gravity ventilation systems. Regardless of wind direction, its spherical shape rotates freely, generating negative pressure in the flue pipe – improving airflow even with minimal pressure differences.

It protects the chimney opening from rain, snow, and leaves while maintaining full airflow capacity. With no moving parts except the rotating sphere, maintenance requirements are minimal – no lubrication or adjustment needed.

Operates without electricity, batteries, or additional components. Simply mount it on a pipe with a diameter of 150 mm and let it work automatically.

Dimensions: outer diameter 250 mm, height 265 mm, mounting hole diameter 150 mm.

Polish product, designed and manufactured for long-term performance in atmospheric conditions. Unlike steel, it does not corrode; unlike plastic, it does not crack – aluminum maintains its shape and function for years.